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Unsaturated fatty acids as thrombin inhibitors

a technology of unsaturated fatty acids and thrombin, which is applied in the direction of biocide, plant ingredients, angiosperm/flowering plants, etc., can solve the problems of insufficient number of people being treated with anticoagulants, liver damage may occur at higher dosages and in longer-term applications, and achieve positive inotropic effects

Inactive Publication Date: 2011-11-03
LTS LOHMANN THERAPIE-SYST AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about new substances and methods for preventing and treating blood clots and related diseases. The invention identifies unsaturated fatty acids as inhibitors of thrombin, which is an enzyme involved in blood clot formation. The unsaturated fatty acids are found in plant drugs such as semen erucae, flores sambuci, and herba adonidis. The patent text also describes a method for testing the thrombin inhibitory activity of plant drugs using a specific assay. The technical effect of the invention is to provide new tools for preventing and treating blood clots and related diseases.

Problems solved by technology

Nevertheless, there are limitations to the use of each of the two substance groups.
For these reasons, an insufficient number of people are being treated with anticoagulants despite the need for such treatment.
However, two American studies (EXULT A; EXULT B) have shown that liver damage may occur at higher dosage as well as in longer-term application.
Thus, it is presently questionable whether Ximelagatran will prove to be of value in long-term therapy, and thereby as a replacement for vitamin K antagonists.

Method used

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Examples

Experimental program
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Effect test

example

[0046]For the thrombin inhibition test, the method according to Sturzebecher was employed, with the exception of the enzyme concentration (Sturzebecher, J., Vieweg, H. (1995). Structure-Activity Relationships of Inhibitors derived from 3-Amidinophenyl-alanine. J Enzyme Inhib, 9, 87-99).[0047]Buffer: 608 mg Tris buffer and 900 mg NaCl were dissolved in 100 ml bidistilled water. The pH value of the buffer was subsequently set to 8.0, using HCl (2 mMol) (concentrations in the sample: 0.05 mol / 1 Tris HCL, 0.154 mol / 1 NaCl). The substance to be examined was dissolved in ethanol (5% total volume). This was followed by filling up with buffer.[0048]Enzyme: 1 mg / ml (=50 NIH—U / ml) thrombin was dissolved in 0.9% NaCl solution (stock solution). To prepare the sample, this solution was diluted 1:100 with a solution of 0.9% NaCL and 1% bovine serum albumin.[0049]Substrate: 6.6 mg Chromozym TH was dissolved in 10 ml bidistilled water (concentration=1 mmol / l).[0050]Measurement sample: 200 μl buffer...

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Abstract

A preparation having at least one unsaturated fatty acid and the use of at least one unsaturated fatty acid having a chain length of 18 or 20 carbon atoms and of plant drugs containing the unsaturated fatty acid as a free fatty acid or a fatty acid radical of a triglyceride. The fatty acid has a chain length of 18 carbon atoms which are provided with 1 to 3 double bonds and the fatty acid has a chain length of 20 carbon atoms which are provided with 1 to 4 double bonds. The double bond or one of the double bonds are located in position 9 or 11 of the carbon chain. The unsaturated fatty acid is supplied in the all-cis configuration. The at least one unsaturated fatty acid prevents and / or treats or is used for producing a preparation for preventing and / or treating thrombosis and thromboembolic diseases.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional application of co-pending U.S. application Ser. No. 12 / 084,438 filed on May 1, 2008, which is a National Stage application of International Application No. PCT / EP2006 / 011497, filed on Nov. 30, 2006, which claims priority of German application number 10 2005 058 369.5, filed on Dec. 6, 2005, all of which are incorporated herein by reference in their entireties.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a preparation having at least one unsaturated fatty acid and the use of at least one unsaturated fatty acid. More particularly, the present invention relates to a preparation having at least one unsaturated fatty acid and the use of at least one unsaturated fatty acid for preventing and / or treating thrombosis and thromboembolic diseases.[0004]2. Description of the Prior Art[0005]Thrombosis is defined as intravital blood coagulation inside a vessel or a car...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K31/20A61P7/02C11C1/04A61K9/28C11C3/00
CPCA61K31/201A61K31/202A61K36/185A61K36/23A61K36/9064A61K36/31A61K36/35A61K36/71A61K36/889A61K36/235A61P7/02
Inventor HOFFMANN, HANS-RAINER
Owner LTS LOHMANN THERAPIE-SYST AG
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